Room heater



Sept. 14, 1943. c. w. CLEMONS YROOM HEATER Filed NOV. l2

lPatented Sept. 14, 1943 ROOM HEATER C. Wood Clemons, St. Louis, Mo.,asslgnor to Knapp-Monarch Company, St. Louis, Mo., a corporation o!Missouri Application November 12, 1940, Serial No. 365,311

`2 Claims.

My present invention relates to an electric heater for rooms and/orspaces which is of general box-like construction and designed to securemaximum efiiciency and thermal circulation of the air heated ,by theheating element of the structure.

One object of the invention is to provide a heater of the generalcharacter mentioned, which is simple durable and inexpensive tomanufacture.

Another object is to provide a heater having a box-like casing and areflector therein for the heating element so shaped and associated withthe casing that eicient air circulation is assured to dissipate heatfrom the heating element into the room surrounding the heater and at thesame time keep the casing for the heater relatively cool.

More particularly. it is my object to provide a casing with a reflectortherein having walls spaced from the walls of the casing and means topermit air oil' the iloor to enter the bottom of the casing and flowupwardly both inside the reflector for being heated by the heatingelement supported thereby and outside the reector within the casing forabsorbing heat from the back of the reflector and from the casing wallsthemselves which latter air is deected by a top wall of the casing so asto flow outwardly into the room with the air heated by the heatingelement.

With these and other objects in view, my invention consists in theconstruction, arrangement and combination of the various parts of mydevice whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims and illustrated in theaccompanying drawing. Although the invention is susceptible of a varietyof embodiments, it is unnecessary to fully describe and illustrate morethan one in order to give a full understanding of the invention bothfrom its structural and functional standpoints. Accordingly, I haveillus- I view on the line 4 4 of Figure 1 and includes a section line 22 indicating where the section for Figure 2 is taken; and

Figure 5 is a bottom plan view of my room heater.

On the accompanying drawing I have used the reference character C toindicate generally a casing, R a reflector and H a heating element. Thecasing C comprises side Walls Ill, a top wall I3 and a back wall I4. Thetop wall I3 has a depending front wall portion I5. The front of thecasing C is open with the exception of the wall portion I5 and a lowerguard wall I6.

The reflector R comprises a back wall and a pair of inclined side wallsI8. The back wall I1 is spaced slightly from the back wall Il of thecasing C and the forward edges of the side walls I8 terminate adjacentthe front edges of the side walls IIJ of the casing. Thus referring toFigure 4, there is an enclosed space in the casing between the casingwalls I0 and I I and the reilector R.

Referring to Figure 3, it will be noted, that the upper edge of thereilector R terminates below the top wall I3 and above the lower edge ofthe depending front wall I5 for purposes which will hereinafter appear.The casing C further has a bottom wall I9 provided with downwardly oisetflanges 2Il contacting with the lower surfaces of inturned flanges 2| onthe lower edges of the side walls |Il ofthe casing C. The flanges 20 and2| are held in contact with each other by means of screws 22 extendingupwardly through foot members 23 and into the flanges 2| as shown inFigure 2. The foot members 23 may be made of wood or any suitableinsulating material.

The bottom wall I9 is provided with a series of periorations 24 locatedinside of the reilector R as shown in Figure 4 and another series ofopenings 25 positioned outside of the reflector or between the reflectorwalls I8 and casing walls I0. The front edge of the bottom wall I9 isindicated at |9a and it will be noted that there is a space 26 betweenthis edge and between the guard wall I6 (see Figure 4).

A protective grill G is provided for the open front of the casing C. Itcomprises vertical elements 21 and horizontal elements 28 made of wireor flat bars and welded or otherwise suitably secured together. The bars21 and their upper ends at 29 hook to enter behind the lower edge .ofthe front wall I5 and their lower ends indicated at 30 are secured as byscrews 3| to 'the guard wall I6. 'I'he ends of the horizontal members 28rest in rabbet-like flanges 32 formed at the forward edges of the sidewalls i of the casing.

The heating element H is supported on insulators 33. The insulators 33are made of lavite or the like and coact with slots 34 in the refiectorR. Some of the insulators are supported on the wall i'i and some of themon the walls i8 so that the heating element may be arranged in a zigzagformation on the reector and its resiliency tends to retain theinsulators 33 in position. The terminal ends of the heating elements areconnected with terminal screws 35 which are suitably insulated andconnected with a supply cord 36.

When the heating element H is energized, it will heat the adjacent airto cause it to rise as indicated by the arrow a in Figures 2 and 3. Suchair will be thrown out into the room as indiand the back wall of saidreflector being spaced from the back wall of said casing. insulatingeiements mounted on said back and' side walls of cated by the arrow band cold air from the ioor s walls, thus also inducing circulation ofair as inv dicated by the arrow e through the perforations 25. Some ofthis air will pass upwardly between the back walls i4 and il of thecasing and reiiector as indicated by the arrow f and some of it willpass upwardly between the side walls ill and said reector, a heatingelement supported on said insulating elements, a 'protective grill forthe iront of said casing between the lower edge ot said dependingportion of the top wall of' the casing and the upper edge of said guardwall, supporting feet secured to the bottom of said casing by means ofscrews or the like and a bottom wall for said casing retained inposition between said feet' and said casing by said screws, said bottomwall being spacedabove the supporting surface for said heater and havingperforations to permit entry of air from adjacent said surface to thecasing within the refi'ector and to the casing outside the reflector andbetween it and the casing walls, said reflector terminating at its upperedge below the top wall of said casing to permit air from outside thereilector to be deected by the top wall toward the interior of thereector and issue through the open front of the casing with air heatedby said heating element, said guard wall having its lower edge spacedabove saidsupporting surface and from the forward edge of said bottomwall to permit entry of additional air to the interior of the reector.

2. A room heater of the character disclosed comprising a casing havingside walls, a back wall and a top wall, said top wall having a dependingportion at the front, a guard Wall across I8 as indicated by the arrowg. Such air will cool the casing so as to keep its temperaturerelatively low so as to avoid burning a person touching the casing. Suchair will flow over the upper edge of the reflector as indicated by thearrows h and i and be carried with the heated air indicated by the arrowb into the room. The air circulating arrangement provides for a maximumof efciency in the circulating operation and in the dissipation of heatfrom the heating element, the reiiector and the casing into the room asdesired.

Some changes may be made in the construction and arrangement-I of theparts of my device without departing from the real spirit and purpose ofmy invention, and it is my intention to cover by my claims any modiedforms of structure or use of mechanical equivalents which may bereasonably included within their scope without sacrificing any of theadvantages thereof.

I claim as my invention:

1. A room heater of the character disclosed l the lower portion of thefront of said casing, a reector within said casing having sides and aback, the front edges of said sides terminating at the front edges ofthe side walls of said casing and the back wall of said reector beingspaced from the back wall of said casing, insulating elements mounted onsaid back and side walls of said reiiector, a heating element supportedon said insulating elements, a protective grill for the front of saidcasing between the lower edge of said depending portion of the top wallof the casing and the upper edge of said guard wall, and a bottom wallfor said casing spaced above the supporting surface for said heater andhaving perforations to permit entry of air from adjacent said surface tothe casing within the reiiector and to the casing outside the reiiectorand between it and the casing walls with the air entering closelyadjacent the reector in all instances, said reflector terminating at itsupper edge below the top wall of said casing to permit air from outsidethe reflector to be deected by the top wall toward the interior of thereflector and issue through the open front of the casing with air heatedby said heating element and the bottom edge of said guard wall beingspaced from said bottom wall to permit entry of additional air to saidheating element.

C. WOOD CLEMONS.

